GNU Astronomy Utilities - Bugs: bug #58360, Disabling default blank values in...
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bug #58360: Disabling default blank values in integer datasets
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Tue 12 May 2020 08:58:13 PM UTC | ||
Category: | All Gnuastro | Severity: | 3 - Normal |
Item Group: | Output not reasonable | Status: | Postponed |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open |
Tue 12 May 2020 09:48:40 PM UTC, comment #1: |
Rafael Morales <rmorales> |
Tue 12 May 2020 08:58:13 PM UTC, original submission:
Unlike the NaN values in floating point format, integers don't have any predefined defined blank value. So as explained in the blank pixels section of the Gnuastro book, we have adopted the following convention for integers: for signed integers, the blank value is the smallest (most negative) and for unsigned integers, its the maximum value.
|
Mohammad Akhlaghi <makhlaghi> |
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Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
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2020-05-12 | makhlaghi | Carbon-Copy | - | Added -email is unavailable- |
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In my opinion, the idea of filtering some pixels when calculating statistics is a kind of "robust" statistical calculation, but not in the standard (classic) way.
My proposal is to clarify which statistic is being used in aststatistics the "robust" or "classic" one and add a new flag to allow switching between them.